A flexible connection braided wire length measuring tool

Abstract

A kind of soft connection braided wire length measuring tool, comprising: body, chamber is equipped in body, chamber is used to place soft connection braided wire;Fixed block is equipped at the front end of chamber, and welding contact is fixed on fixed block;Limiting portion is equipped at the side of chamber, limiting portion is equipped with track, and baffle is equipped on track;The extension direction of track is parallel with the extension direction of chamber;When soft connection braided wire is placed in chamber, braided wire is attached to limiting portion, baffle limits the deformation of braided wire in length direction, limiting portion limits the deformation of braided wire in width direction;Pressing plate, pressing plate includes pressing plate body, and pressing plate body covers chamber;The width size of chamber is matched with the width size of braided wire.

Description

Technical Field

[0001] This utility model relates to the field of flexible braided wire measurement technology, and in particular to a tooling for measuring the length of flexible braided wire. Background Technology

[0002] In the field of medium-voltage circuit breakers, especially medium-voltage vacuum circuit breakers, the elongation of flexible connecting braided wires is crucial. During elongation, the contacts operate in a tripping motion, while during compression, they operate in a closing motion. Therefore, the length and elongation of the braided wire are subject to stringent requirements. Currently, the industry standard tolerance for flexible connecting braided wires is generally ±0.3mm. However, due to the characteristics of the braided wire and the difficulty in defining its natural state, the length of the braided wire directly determines whether the welded contacts can reach the designated position during operation. Maintaining a ±0.3mm tolerance for the braided wire is difficult and complex in the industry. Generally, each flexible connecting product requires trial installation on a circuit breaker and repeated adjustments, wasting considerable manpower and resources, and resulting in a low pass rate.

[0003] Accurate measurement of the length and elongation of flexible braided cables has become a pressing technical challenge in the industry. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a tooling for measuring the length of flexible braided wire, which solves the problem of large measurement error of braided wire.

[0005] To achieve the above objectives, this utility model provides a tooling for measuring the length of flexible braided wire, comprising: The main body has a cavity inside, which is used to hold the flexible braided wire; A fixing block is provided at the front end of the chamber, and the welding contact head is fixed on the fixing block; A limiting part is provided on the side of the chamber, a track is provided on the limiting part, and a baffle is provided on the track; The direction of the track's extension is parallel to the direction of the chamber's extension; When the flexible braided wire is placed in the cavity, the braided wire fits against the limiting part, the baffle restricts the deformation of the braided wire in the length direction, and the limiting part restricts the deformation of the braided wire in the width direction. The pressure plate includes a pressure plate body, which covers the cavity. The width of the chamber matches the width of the braided yarn.

[0006] Preferably, the bottom of the pressure plate body is provided with a protrusion, and when the braided thread is placed in the cavity, the protrusion is in contact with the upper surface of the braided thread.

[0007] Preferably, the fixing part is provided with a vertical plate, and when the braided thread is placed in the cavity, the vertical plate is arranged parallel to the baffle.

[0008] Preferably, the upright plate is provided with a first fixing hole; The side of the baffle facing the vertical plate is provided with a first positioning part, which matches the first fixing hole; The first fixing block is fitted onto the first positioning part, and the upright plate and the baffle are in contact.

[0009] Preferably, an indexing pin is provided on the side of the baffle facing away from the first positioning part, and the indexing pin is connected to the first positioning part; The indexing pin is used to control the size of the first positioning part protruding from the surface of the baffle.

[0010] Preferably, limiting portions are provided on both sides of the chamber, and the limiting portions protrude on both sides of the chamber; The baffle moves above the chamber along the direction of the track's extension.

[0011] Preferably, the limiting part is further provided with a scale unit, which is located at the end of the limiting part away from the fixed block.

[0012] Preferably, the length of the chamber and the length of the track are both greater than the length of the braided thread.

[0013] Preferably, a handle is provided on the side of the pressure plate body facing away from the protrusion.

[0014] Preferably, the length of the pressure plate is not less than the length of the braided yarn when compressed, and is less than the length of the chamber.

[0015] The flexible braided wire length measuring fixture provided in this application conveniently realizes the measurement of braided wire length; it is easy to compare with the length of standard parts; and it solves the problems of poor consistency of braided wire and large measurement error.

[0016] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present application and form part of the specification. Together with the embodiments of the present application, they serve to explain the present application but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the flexible braided wire according to an embodiment of this application; Figure 2 This is a schematic diagram of the three-dimensional structure of the tooling for measuring the length of the flexible braided wire according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the tooling for measuring the length of the flexible braided wire according to an embodiment of this application when the pressure plate is removed; Figure 4 This is a schematic diagram of the pressure plate structure according to an embodiment of this application.

[0018] Figure label: 101-Fixing part; 1011-Upright plate; 1012-First fixing hole; 102-Braided wire; 103-Welding contact head; 1031-First through hole; 201-Body; 2011-Fixing block; 2012-Limiting part; 2013-Rail; 2014-Cavity; 2015-Baffle; 2016-First positioning part; 2017-Scale unit; 2018-Index pin; 202-Pressure plate; 2021-Pressure plate body; 2022-Handle; 2023-Protrusion. Detailed Implementation

[0019] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0020] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0021] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0022] It should be noted that the terms "first" and "second" may be used in this application only to distinguish different devices, components or parts, and are not used to define the order of functions performed by these devices, components or parts or their interdependence.

[0023] It should be noted that the terms "one" and "more" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be understood as "one or more". "More" should be understood as two or more.

[0024] The flexible braided wire length measuring fixture of this application includes: The main body 201 has a cavity 2014 inside, which is used to hold the flexible braided wire; A fixing block 2011 is provided at the front end of the chamber 2014, and the welding contact head 103 is fixed on the fixing block 2011; A limiting part 2012 is provided on the side of the chamber 2014, a track 2013 is provided on the limiting part 2012, and a baffle 2015 is provided on the track 2013; The extension direction of track 2013 is parallel to the extension direction of chamber 2014; When the flexible braided wire is placed in the cavity 2014, the braided wire 102 is in contact with the limiting part 2012. The baffle 2015 restricts the deformation of the braided wire 102 in the length direction, and the limiting part 2012 restricts the deformation of the braided wire 102 in the width direction. Pressure plate 202, pressure plate 202 includes pressure plate body 2021, pressure plate body 2021 covers chamber 2014; The width of chamber 2014 matches the width of braided thread 102.

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings. Example

[0026] Figure 1 The diagram below shows a three-dimensional structure of a flexible braided wire according to an embodiment of this application. The flexible braided wire in this embodiment includes a fixing part 101, a welding contact head 103, and a braided wire 102. The fixing part 101 and the welding contact head 103 are located at both ends of the braided wire 102, or the fixing part 101 and the welding contact head 103 are connected by the braided wire 102.

[0027] In an exemplary embodiment, the flexible braided wire of this application embodiment has a fixing part 101 provided with a vertical plate 1011, which is perpendicular or approximately perpendicular to the upper surface of the braided wire 102; the braided wire 102 is, for example, a copper braided wire; and the solder contact head 103 is provided with a first through hole 1031.

[0028] In one exemplary embodiment, both the fixing part 101 and the welding contact head 103 may be made of copper as needed.

[0029] In one exemplary embodiment, the flexible connector braided wire length measuring fixture of this application embodiment is used to measure the length dimension of the braided wire 102 of the flexible connector braided wire.

[0030] In one exemplary embodiment, since the braided wire 102 changes in length but not in volume when stretched or compressed, the flexible braided wire length measuring fixture of this application embodiment is based on this characteristic to measure the length of the braided wire 102.

[0031] In an exemplary embodiment, the flexible braided wire length measuring fixture of this application includes: a body 201, a chamber 2014 provided inside the body 201, the chamber 2014 being used to place the flexible braided wire; of course, the flexible braided wire can be placed entirely inside the chamber 2014 as needed.

[0032] In one exemplary embodiment, a fixing block 2011 is provided at the front end of the chamber 2014. The fixing block 2011 may be located at the front end inside the chamber 2014.

[0033] In one exemplary embodiment, the fixing block 2011 may be a component protruding from the bottom of the chamber 2014. The fixing block 2011 is used to fix the welding contact head 103, for example, the welding contact head 103 is sleeved on the fixing block 2011.

[0034] In one exemplary embodiment, a limiting portion 2012 is provided protruding from the side of the chamber 2014, for example, limiting portions 2012 are provided on both the left and right sides of the chamber 2014. Figure 2 and Figure 3 As shown; the limiting part 2012 is provided with a track 2013, and the track 2013 is provided with a baffle 2015, that is, the baffle 2015 can slide on the track 2013.

[0035] In one exemplary embodiment, the extension direction of the track 2013 is parallel to the extension direction of the chamber 2014.

[0036] In one exemplary embodiment, the width of the chamber 2014 matches the width of the braided thread 102, which can be understood as the braided thread 102 being in contact with the limiting portion 2012 at least when compressed.

[0037] In an exemplary embodiment, when the flexible braided wire is placed inside the cavity 2014, the braided wire 102 is in contact with the limiting part 2012, the baffle 2015 restricts the deformation of the braided wire 102 in the length direction, and the limiting part 2012 restricts the deformation of the braided wire 102 in the width direction; it can be understood that the baffle 2015 and the fixing block 2011 cooperate to restrict the deformation of the braided wire 102 in the front-back direction, and the limiting parts 2012 arranged on the left and right sides of the cavity 2014 restrict the deformation of the braided wire 102 in the left-right direction.

[0038] In one exemplary embodiment, the flexible braided wire length measuring fixture of this application embodiment further includes: a pressure plate 202.

[0039] In one exemplary embodiment, the pressure plate 202 includes a pressure plate body 2021 that covers the chamber 2014.

[0040] In an exemplary embodiment, the bottom of the pressure plate body 2021 is provided with a protrusion 2023. When the braided thread 102 is placed in the chamber 2014, the protrusion 2023 is in contact with the upper surface of the braided thread 102. It can be understood that when the pressure plate 202 covers the chamber 2014, the protrusion 2023 at the bottom of the pressure plate body 2021 is in contact with the upper surface of the braided thread 102 to ensure that the upper surface of the braided thread 102 is flat and does not bulge or warp; or, in other words, to control the upper surface of the braided thread 102 to be in the same plane when it is compressed.

[0041] In one exemplary embodiment, the protrusion 2023 can be understood as a raised step on the lower surface of the pressure plate body 2021.

[0042] In one exemplary embodiment, the pressure plate 202 is a metal plate, and the flatness of the upper surface of the braided thread 102 can be maintained by the weight of the pressure plate 202 itself.

[0043] In one exemplary embodiment, the upright plate 1011 and the baffle 2015 are arranged in parallel, which can be understood as the upright plate 1011 and the baffle 2015 being attached to each other during use.

[0044] In one exemplary embodiment, the upright plate 1011 is provided with a first fixing hole 1012, and the baffle 2015 is provided with a first positioning part 2016 on the side facing the upright plate 1011. The first positioning part 2016 matches the first fixing hole 1012, and the first fixing hole 1012 is sleeved on the first positioning part 2016. The upright plate 1011 and the baffle 2015 are in close contact. Figure 2 As shown.

[0045] In one exemplary embodiment, an indexing pin 2018 is provided on the side of the baffle 2015 facing away from the first positioning part 2016. The indexing pin 2018 is connected to the first positioning part 2016 and is used to control the size of the first positioning part 2016 protruding from the surface of the baffle 2015. As needed, the first positioning part 2016 can be controlled to protrude from the surface of the baffle 2015 by pulling the indexing pin 2018. That is, when the indexing pin 2018 is pulled, the first positioning part 2016 does not protrude from the surface of the baffle 2015.

[0046] In one exemplary embodiment, the baffle 2015 moves above the chamber 2014 along the extension direction of the track 2013.

[0047] In an exemplary embodiment, the limiting part 2012 is further provided with a scale unit 2017, which is disposed at one end of the limiting part 2012 away from the fixing block 2011; it can be understood that a length measuring unit for measuring whether the braided thread 102 is long or short is provided at the end of the limiting part 2012.

[0048] In one exemplary embodiment, the length of the chamber 2014 and the length of the track 2013 are both greater than the length of the braided thread 102.

[0049] In one exemplary embodiment, the pressure plate body 2021 has a handle 2022 on the side opposite to the protrusion 2023.

[0050] In one exemplary embodiment, the length of the pressure plate 202 is not less than the length of the braided thread 102 when compressed, and is less than the length of the chamber 2014.

[0051] In an exemplary embodiment, the flexible connector braided wire length measuring fixture of this application is used by first placing the flexible connector braided wire in the chamber 2014, and then fitting the first through hole 1031 of the welding contact head 103 onto the fixing block 2011. Then, the pressure plate 202 is placed on top, and the first fixing hole 1012 on the upright plate 1011 is fitted onto the first positioning part 2016, with the upright plate 1011 and the baffle 2015 in contact. When the upright plate 1011 is pushed towards the fixing block 2011 until it can no longer move, it indicates that the braided wire 102 can no longer be compressed. At this time, the value on the scale unit 2017 is read, or the length of the braided wire 102 is determined by judging the value at the scale unit 2017 where the upright plate 1011 is located. If necessary, the position of the standard-sized braided wire 102 during compression can be preset to determine whether the length of the braided wire 102 to be measured is longer or shorter than the standard size. Then, the corresponding size of the braided wire 102 is adjusted according to the inspection results.

[0052] It will be understood by those skilled in the art that the above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fixture for measuring the length of a flexible braided wire, the flexible braided wire comprising a connecting fixing part and a welding contact head, characterized in that, include: The main body has a cavity inside, which is used to place the flexible braided wire; A fixing block is provided at the front end of the chamber, and the welding contact head is fixed on the fixing block; A limiting part is provided on the side of the chamber, a track is provided on the limiting part, and a baffle is provided on the track; The extension direction of the track is parallel to the extension direction of the chamber; When the flexible braided wire is placed in the cavity, the braided wire is in contact with the limiting part, the baffle restricts the deformation of the braided wire in the length direction, and the limiting part restricts the deformation of the braided wire in the width direction; A pressure plate, the pressure plate comprising a pressure plate body covering the cavity; The width of the chamber matches the width of the braided thread.

2. The tooling for measuring the length of the flexible braided wire according to claim 1, characterized in that, The bottom of the pressure plate body is provided with a protrusion, and when the braided thread is placed in the cavity, the protrusion is in contact with the upper surface of the braided thread.

3. The tooling for measuring the length of the flexible braided wire according to claim 1, characterized in that, The fixing part is provided with a vertical plate, and when the braided thread is placed in the cavity, the vertical plate is arranged parallel to the baffle.

4. The flexible connector braided wire length measuring fixture according to claim 3, characterized in that, The upright plate is provided with a first fixing hole; The baffle is provided with a first positioning part on the side facing the upright plate, and the first positioning part matches the first fixing hole; The first fixing hole is fitted onto the first positioning part, and the upright plate is in contact with the baffle.

5. The flexible connector braided wire length measuring fixture according to claim 4, characterized in that, A dividing pin is provided on the side of the baffle facing away from the first positioning part, and the dividing pin is connected to the first positioning part; The indexing pin is used to control the size of the first positioning part protruding from the surface of the baffle.

6. The tooling for measuring the length of the flexible braided wire according to claim 1, characterized in that, The limiting portion is provided on both sides of the chamber, and the limiting portion protrudes from both sides of the chamber; The baffle moves above the chamber along the extension direction of the track.

7. The tooling for measuring the length of flexible braided wire according to claim 1, characterized in that, The limiting part is also provided with a scale unit, which is located at one end of the limiting part away from the fixing block.

8. The tooling for measuring the length of the flexible braided wire according to claim 1, characterized in that, The length of the chamber and the length of the track are both greater than the length of the braided thread.

9. The tooling for measuring the length of the flexible braided wire according to claim 2, characterized in that, The pressure plate body has a handle on the side facing away from the protrusion.

10. The tooling for measuring the length of the flexible braided wire according to claim 1, characterized in that, The length of the pressure plate is not less than the length of the braided yarn when compressed, and is less than the length of the chamber.

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